KR102281714B1 - Powder grinding apparatus - Google Patents

Abstract

The present invention powder grinding apparatus, comprising: an approximately cylindrical tube housing with open upper and lower ends; a pulverizing mesh provided in the tube housing, having a cylindrical or cone shape as a whole, with an open upper end and a hollow formed at a lower end thereof, and having a plurality of perforations formed on a side thereof so that pulverized powder can be discharged; a plurality of blades provided by being inserted through the hollow at the lower end of the pulverizing mesh, and arranged in a multi-layer structure at regular intervals on a single vertical axis of rotation rotating at the same time to cut powder injected into the pulverizing mesh into a smaller size and to push the cut powder toward the perforation of the pulverizing mesh; and a motor provided under the pulverizing mesh to rotate the rotation shaft of the blade assembly in a forward or reverse direction by being coupled to the rotation shaft of the blade assembly through one side of the tube housing. The present invention relates to a powder grinding apparatus of an improved type for crushing while finely chopping powder to a desired size without overflowing the powder injected through the pulverizing mesh.

Description

Powder grinding apparatus

The present invention relates to a powder crushing device, and more particularly, to an improved powder crushing device that can smoothly grind and discharge the powder injected into the crushing mesh into a desired size without overflowing regardless of the particle size or input amount of the powder to be crushed it's about

In general, a powder pulverizing device refers to a device for finely pulverizing particles of the powder to a desired size by injecting raw material powder, which is a pulverization object, when manufacturing pharmaceuticals or cosmetics.

Such a powder crushing device has a configuration in which it is continuously crushed by friction between a rotating hard impeller and a crushing mesh with perforations formed on the bottom or side surfaces, and is filtered to a predetermined size and discharged to the lower container at the same time.

However, the conventional powder grinding apparatus of this configuration does not have a problem in applying it when the raw powder particles are small, but for example, an excessive amount of the object to be pulverized in which the particles of a large or small agglomerate are mixed in different ways can be crushed with a pulverizing net at once. When supplied, a large lump was not properly pulverized to a desired size by the impeller, and was rolled with the impeller and overflowed out of the pulverizing mesh.

Accordingly, if there is excess powder without going through the grinding process, the process of sorting or grinding the powder that has not been pulverized to an appropriate size has to be performed again, so unnecessary time is consumed and production efficiency is reduced, such as increased man-hours.

In addition, in the actual powder pulverization process, there are many cases where it is necessary to input and pulverize dry granules in a dry state as well as wet granules containing some moisture as a pulverizing object. Conventionally, viscous wet granules are used in the above-mentioned cone-shaped pulverizing mesh. There is no problem in pulverizing while rotating. However, when dry granules are put into a cone-shaped pulverizing mesh that rotates close to the small volume and the impeller is close, the powder itself has little viscosity, so even in this case, it has a small cone shape. The powder put into the crushing mesh of the powder could not be crushed immediately and scattered upward, and the raw material powder of a large lump could not be crushed finely, but it was rolled with the impeller and overflowed out of the crushing mesh.

U.S. Patent No. 5,330,113 (Registered on July 19, 1994)

Accordingly, the present invention was invented to solve the above problems, and the present invention improves the conventional powder grinding apparatus, regardless of the particle size or input amount of the raw material powder injected into the grinding net, and the difference in viscosity of wet or dry granules. An object of the present invention is to provide a powder grinding device of an improved form in which the powder injected through the grinding mesh can be crushed while being finely cut to a desired size without overflowing.

According to an embodiment of the present invention for achieving the above object, the upper and lower ends are open approximately cylindrical tube housing; It is provided in the tube housing and has a cylindrical or cone shape as a whole, a hollow is formed at the lower end with an open upper end, and a plurality of perforations are formed to have a uniform pattern on the side so that the pulverized powder can be discharged. ; A plurality of blades that are rotatably coupled through the hollow at the bottom of the grinding net and arranged in a multi-layer structure at regular intervals on a single vertical rotation axis simultaneously rotate about the rotation axis to make the powder injected into the grinding net into smaller pieces. a blade assembly for pushing the cut powder toward the perforation of the pulverizing mesh while cutting to size; and a motor provided below the crushing mesh body to rotate the rotation shaft of the blade assembly in a forward or reverse direction as it is coupled to the rotation shaft of the blade assembly through one side of the tube housing.

In addition, according to one embodiment, the perforation of the grinding net body is formed in a spiral or downwardly curved curved shape along the circumference of the grinding net body in which the grator cutting hole protruding inward is formed in the grinding net body as the blade assembly is rotated. The injected powder is simultaneously cut and pulverized by each blade of the blade assembly and a greater cutting hole.

In addition, according to one embodiment, the greater cutting hole of the crushing mesh is formed by densely punching the greater cutting hole along a straight line in a rectangular or sector-shaped metal flat plate having a predetermined area, and then rounding the metal flat plate into a cylindrical or cone shape. When rolled, the greater cutting holes are arranged in a spiral or downwardly curved curved shape along the circumference of the crushing mesh.

In addition, according to one embodiment, the grinding net body has a shape in which the inner diameters of the upper and lower ends are formed in the same cylinder, and the grator cutting hole is spirally wound along the circumference of the cylindrical grinding net body, and within the grinding net body The radius of rotation from the axis of rotation of each blade provided in multiple layers to the free end is the same.

In addition, according to one embodiment, the grinding net body is formed in a cone shape with the largest inner diameter at the top and the inner diameter gradually decreasing toward the bottom, and the Greater cutting hole is curved downward along the circumference of the cone-shaped grinding net body has a curved shape, and the radius of rotation from the rotation shaft to the free end of each blade provided in multiple layers in the crushing mesh is the same as the inner diameter of the crushing mesh, with the blade positioned at the top being the largest and getting smaller toward the bottom.

In addition, according to an embodiment, an adapter and a gear box are further provided between the rotation shaft of the blade assembly and the drive shaft of the motor, so that the rotation of the drive shaft of the motor horizontally coupled to one side of the blade assembly by the adapter and the gear box is performed in a vertical direction. of the blade assembly is transmitted to the axis of rotation.

In addition, according to an embodiment, a fixing member is further provided in the tube housing so that the cylindrical or cone-shaped crushing mesh body can be inserted and fixed in a replaceable manner.

In addition, according to an embodiment, the fixing member may include at least one fitting piece formed on one side of the outer circumferential surface of the crushing net body in a state in which a through hole is formed therein; and a fitting pin protruding from the inside of the tube housing so that the grinding net body is selectively fixed in the tube housing as the through hole of the fitting piece is fitted.

In addition, according to an embodiment, the powder of dry granules without viscosity is added to the cylindrical grinding net, and is cut and pulverized.

In addition, according to an embodiment, the powder of wet granules having viscosity is added to the cone-shaped grinding net, and is cut and pulverized.

In addition, according to one embodiment, each blade is rotated in a direction meshing with the punching direction of the Greater cutting hole of the crushing mesh body, and the crushing object positioned between the blade and the Greater cutting hole is the blade and the Greater ) is cut and pulverized at the same time by meshing with the cutting hole.

The present invention, as described above, provides a plurality of blades and pulverization installed in multiple stages for the powder put into the pulverizing net irrespective of the particle size or input amount of the raw material powder compared to the conventional powder pulverizing device equipped with a single pulverizing mesh having a cone shape. Since the grator cutting hole protruding inside the mesh body rapidly cuts and pulverizes the powder both inside and out, the process efficiency of powder grinding is greatly improved, and the conventional large lump of powder particles is rolled together with the impeller and then crushed. It has the effect of preventing waste from overflowing to the outside.

In addition, when it is desired to pulverize dry granules as well as viscous wet granules as raw material powders to be pulverized, replace with a cylindrical pulverizing mesh suitable for pulverizing the dry granules and proceed with the pulverization process to increase the amount of powder that can be put in at once It has the effect of quickly and efficiently performing the grinding process without the powder scattering upwards or overflowing out of the grinding net.

1 is an overall configuration view according to an embodiment of a powder grinding apparatus of the present invention, (a) is a front view, (b) is a plan view
Figure 2 is an overall configuration view according to another embodiment of the powder grinding apparatus of the present invention, (a) is a front view, (b) is a plan view
Figure 3 is an enlarged view of the main part showing the configuration of the crushing mesh of an embodiment according to the present invention;
4 is a state diagram of a process for manufacturing a crushing mesh according to an embodiment of the present invention, (a) is a state in which a greater cutting hole is perforated in a rectangular metal plate, (b) is a state in which a greater cutting hole is perforated; (c) is a state in which a perforated rectangular metal plate is rolled to form a pulverized mesh
Figure 5 is a state diagram of a process for manufacturing a grinding net body of another embodiment according to the present invention, (a) is a state in which a greater cutting hole is drilled in a fan-shaped metal flat plate, (b) is a state in which a greater cutting hole is punched; (c) is a state in which a perforated fan-shaped metal plate is rolled to form a pulverized mesh

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" to "include" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the present specification exist, but one It should be understood that it does not preclude the existence or addition of other features or numbers, steps, operations, components, parts, or combinations thereof, or other features or more.

Unless defined otherwise herein, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. shouldn't

Hereinafter, with reference to the accompanying drawings, the configuration and operation relationship of the powder grinding apparatus of the present invention will be described in detail as follows.

First, Figure 1 is an overall configuration diagram according to an embodiment of the powder grinding apparatus of the present invention, (a) is a front view, (b) is a plan view.

Referring to FIG. 1 , the powder grinding apparatus of the present invention includes a tube housing 100 having an open upper and lower ends 100a and 100b, according to an embodiment. The tube housing 100 is a metal tube structure into which a pulverized object such as pharmaceutical raw material powder is input from the upper end (inlet side, 100a) and the pulverized pulverized object is taken out from the lower end (outlet side, 100b), the upper end ( 100a) is further provided with a connection flange 110 and a connection hook 120 for directly connecting the raw material transport flow path (not shown) for continuous transport.

In addition, the cylindrical grinding net body 200A according to an embodiment of the present invention is provided in the tube housing 100 . The cylindrical pulverizing network 200A has an open top and a hollow (200a, see FIG. 5c) at the bottom, and a plurality of perforations having a constant pattern so that the pulverized powder can be discharged is formed on the side.

In particular, the cylindrical pulverizing mesh 200A may be used as a pulverizing object for pulverizing raw powder of dry granules. Since the cylindrical crushing mesh 200A has a large volume and depth, it does not contain moisture, so even if the raw powder of dry granules that is not viscous and easily scattered is continuously added, it is accommodated so as not to scatter or overflow from the cylindrical crushing mesh 200A. It has an advantageous structure for

In addition, the cylindrical crushing mesh 200A has the same inner diameters of the upper and lower ends, and a grator cutting hole 201 for crushing the crushing object is spirally formed on the circumferential surface of the cylindrical crushing mesh 200A. It has a shape (refer to 'Greater Cutting Hole Spiral Winding Direction' in FIG. 4C).

The greater cutting hole 201 is formed to protrude to the inside of the crushing mesh 200A in a spiral shape along the circumference of the cylindrical crushing mesh 200A, and the blade assembly 300 provided inside the cylindrical crushing mesh 200A. ) is rotated, the powder continuously input into the inside of the cylindrical grinding net 200A is simultaneously cut and pulverized in and out by each blade 320 and the greater cutting hole 201 of the blade assembly 300 do.

At this time, the blade assembly 300 is rotatably coupled to the drive shaft 601 of the motor 600 to be described later through the lower hollow 200a (see FIG. 5c ) of the cylindrical crushing mesh 200A, and a single vertical A plurality of blades 320 arranged in a multi-layer structure at regular intervals on the rotating shaft 310 simultaneously rotate around the rotating shaft 310 while cutting the powder injected into the cylindrical grinding net 200A into smaller sizes and It serves to push and transfer the cut powder together toward the greater cutting hole 201 of the cylindrical grinding net 200A.

At this time, the rotation radius from the rotation shaft 310 of each blade 320 provided in multiple layers in the cylindrical crushing mesh 200A to the free end opposite the rotation shaft 310 is the same as the inner diameter of the cylindrical crushing mesh 200A. All may be formed identically.

In addition, a motor 600 driven by applying electric force is provided below the cylindrical crushing mesh 200A, and the drive shaft 601 of the motor 600 is connected to the blade assembly 300 through one side of the tube housing 100 . ) by being coupled to the rotation shaft 310 to rotate the blade assembly 300 in the forward or reverse direction.

In addition, as the adapter 500 and the gearbox 400 are provided between the rotation shaft 310 of the blade assembly 300 and the drive shaft 601 of the motor 600 , it is horizontally coupled to one side of the blade assembly 300 . The driving force is transmitted to the rotation shaft 310 of the blade assembly 300 provided in the vertical direction in the cylindrical crushing mesh 200A for rotation of the driving shaft 601 of the motor 600 .

In addition to the role of transmitting the rotational force of the drive shaft 601 of the motor 600 to the blade assembly 300 arranged vertically, the gearbox 400 is configured to appropriately design the outer diameter and number of gear teeth of several gears meshed therein. It is understandable that the rotational speed of the motor 600 transmitted through the gearbox 400 may be appropriately adjusted and then transmitted to the blade assembly 300 .

On the other hand, Figure 2 is an overall configuration view according to another embodiment of the powder grinding apparatus of the present invention, (a) is a front view, (b) is a plan view.

Referring to FIG. 2, as another embodiment of the present invention, a powder grinding apparatus having a cone-shaped grinding network 200B is shown.

While the cylindrical grinding net 200A according to an embodiment is for grinding powder of dry granules that do not contain moisture, the cone-shaped grinding net 200B of another embodiment shown in FIG. 2 is viscous. It can be advantageously used for the purpose of pulverizing the powder of wet granules.

In general, the powder of wet granules having such viscosity has a greater viscosity and load than that of dry granules, and when the blade 320 rotates to cut and pulverize the powder of wet granules, the cone-shaped grinding net 200B and the blade It is possible to reduce the mechanical load through the small turning radius of 320, and also because the cone-shaped crushing mesh 200B and the blade 320 have a short discharge path, the powder of the pulverized wet granules can be rapidly discharged laterally. It is understandable to be able to

Therefore, in the powder grinding apparatus of the present invention, the cylindrical grinding net 200A or the cone-shaped grinding net 200B can be easily replaced and mounted according to the powder material to be input for dry granules or wet granules. It is possible to more efficiently grind the powder material of granules according to the characteristics of the material.

On the other hand, the cone-shaped crushing mesh 200B is formed in a cone shape having the largest inner diameter at the top and gradually decreasing the inner diameter toward the bottom, and a greater cutting hole 201 is formed in the cone-shaped crushing mesh 200B. They are arranged in a curved shape curved downward along the circumference (refer to 'Greater Cutting Hole Downward Curve Direction' in FIG. 5B ).

At this time, each blade 320 of the blade assembly 300 provided in the cone-shaped crushing mesh 200B has a different rotation radius for each layer, for example, from the rotation shaft 310 of each blade 320 . The radius of rotation to the free end must be reduced at the same rate as the inner diameter of the cone-shaped grinding net (200B). That is, the blade 320 located at the upper end is the largest and may be formed in a structure that becomes smaller toward the lower end.

On the other hand, other configurations such as the gearbox 400, the adapter 500 and the motor 600 have the same configuration as described above in an embodiment of the cylindrical crushing mesh 200A of FIG. 1 .

Figure 3 is an enlarged view of the main part showing the configuration of the pulverizing mesh of an embodiment according to the present invention.

As described above, in order to easily replace the cylindrical crushing mesh 200A and the cone-shaped crushing mesh 200B according to an embodiment of the present invention, the cylindrical or cone-shaped crushing mesh 200A, 200B is a tube housing ( 100) A fixing member is provided so that it can be inserted and fixed inside.

The fixing member, according to an embodiment, is provided with at least one fitting piece 202 formed on one side of the outer circumferential surface of the crushing meshes 200A and 200B in a state in which the through hole 202a is formed therein, and a tube housing ( 100) Inside, as the through hole 202a of the fitting piece 202 is fitted, a fitting pin 203 to which the crushing meshes 200A and 200B are detachably fixed in the tube housing 100 is provided.

The configuration of the fixing member of the fitting piece 202 and the fitting pin 203 described above is merely an example according to an embodiment for better understanding, and as such, the crushing meshes 200A and 200B are easily attached and detached in the tube housing 100. The configuration and arrangement that can be made are to be variously designed so that the same function can be performed, and thus it is to be specified that the bar is not limited to the configuration of FIG. 3 described above.

4 is a state diagram of a process for manufacturing a cylindrical grinding mesh according to an embodiment of the present invention, (a) is a state in which a greater cutting hole is drilled in a rectangular metal plate, (b) is a state in which a greater cutting hole is drilled; , (c) is a state in which a perforated rectangular metal plate is rolled to form a pulverized mesh.

First, referring to FIG. 4A , in order to manufacture the cylindrical crushing mesh 200A, it is formed by densely punching a Greater cutting hole 201 along a straight line in a rectangular metal plate having a predetermined area. 4A shows an example of forming a plurality of greater cutting holes 201 in parallel and diagonally. (Refer to the arrow in ‘Direction of forming a greater cutting hole’)

As described above, when the formation of the great cutting hole 201 by punching is completed, each of the great cutting holes 201 is in the same direction as the cutting tip 201a on the metal plate at a certain height as shown in FIG. 4b. A discharge hole (201b) is formed below the cutting tip (201a) while protruding so that the crushed object cut by the cutting tip (201a) can be pushed out of the crushing meshes (200A, 200B) and discharged.

Meanwhile, referring to FIG. 4C , when the metal flat plate on which the greater cutting hole 201 is formed is rolled into a cylindrical shape as described above, the greater cutting hole 201 is spirally wound along the circumference of the crushing mesh. Sorting is understandable. (Refer to the arrow in ‘Greater cutting hole helix winding direction’)

Therefore, when an object to be crushed (eg, powder of dry granules) is continuously added into the cylindrical crushing mesh 200A manufactured as described above, each blade is rotated while being conveyed in the depth direction of the cylindrical crushing mesh 200A. It is understandable to be cut and crushed by 320 .

As described above, when the crushing object is continuously supplied to the cylindrical crushing mesh 200A, it is cut and pulverized by the rotation of the blade 320 while spiraling from the inner surface of the cylindrical crushing mesh 200A ('Greater Cutting Hole Spiral in Fig. 4c). It proceeds downward along the 'winding direction'), and at this time, on the inner surface of the cylindrical crushing mesh 200A, a spiral is also formed to face the direction in which the blade 320 is rotated (refer to the 'blade rotation direction' arrow in FIG. 4b). Since the greater cutting holes 201 are aligned accordingly, the crushing object is cut and pulverized simultaneously in both directions while being engaged between the rotating blade 320 and the greater cutting holes 201 and discharged.

That is, in the present invention, a plurality of blades 320 provided in multiple layers are rotated to cut and pulverize the object to be pulverized while drawing a spiral to the lower side of the cylindrical pulverizing mesh 200A, and with this, the cylindrical pulverizing mesh 200A. Since it is simultaneously cut and pulverized on both sides by the greater cutting hole 201 protruding along the spiral inside of the powder, the pulverization speed of the powder and the efficiency of the pulverization process are significantly improved compared to the prior art.

Figure 5 is a state diagram of a process for manufacturing a grinding net body of another embodiment according to the present invention, (a) is a state in which a greater cutting hole is drilled in a fan-shaped metal flat plate, (b) is a state in which a greater cutting hole is punched; (c) is a state in which a perforated fan-shaped metal plate is rolled to form a pulverized mesh.

First, referring to Figure 5a, for the manufacture of the cone-shaped crushing mesh 200B, along the central direction extension line (refer to the 'Greater cutting hole formation direction' arrow) of a sectoral arc on a sectoral metal flat plate having a certain area Greater cutting hole (201) is formed by densely punching.

At this time, the number of the greater cutting holes 201 formed at the upper end of the sector and the greater cutting holes 201 formed at the lower end of FIG. 5A are the same, but the greater cutting holes 201 are radially distributed. The interval between the greater cutting holes 201 at the top of the sector is wide and has a shape that gradually narrows toward the bottom.

As described above, in a state in which the greater cutting hole 201 is formed by punching, the cutting tip 201a protrudes to a certain height on the metal flat plate in all of the great cutting holes 201 in the same direction. A discharge hole 201b through which the crushed object cut by the cutting tip 201a is discharged to the outside of the cone-shaped crushing mesh 200B is formed below the tip 201a, which is the same as the configuration described in FIG. 4 above.

When the greater cutting holes 201 are formed in this way, as shown in FIG. 5B , the greater cutting holes 201 are arranged in a wavy pattern laterally according to the radial arrangement of the greater cutting holes ('Greater cutting holes'). Hall downward curve direction' arrow).

On the other hand, referring to FIG. 5C , when the metal flat plate on which the greater cutting hole 201 is formed is rolled into a cone shape as described above, the greater cutting hole 201 is formed along the circumference of the cone-shaped crushing mesh 200B. It is understandable that the arrangement is arranged in a more curved shape downward.

Therefore, when an object to be pulverized (for example, powder of wet granules) is continuously input into the cone-shaped grinding net 200B manufactured as described above, the input pulverization object is rotated while being transferred in the depth direction of the cone-shaped grinding net 200B. It is cut and pulverized by each blade 320 and discharged laterally.

As described above, the crushing object to be cut and crushed by the rotation of the blade 320 is a downward curved pattern of the greater cutting hole 201 formed on the inner surface of the cone-shaped crushing mesh 200B ('Greater cutting hole downward curved direction in FIG. 5B) ' It proceeds downward along the arrow), and at this time, on the inner surface of the cone-shaped grinding net 200B, the Greater cutting holes 201 are aligned along the downward curved pattern in the same manner as the moving direction of the grinding object. Because of this, the crushing object is rotated and interlocked between the blade 320 and the Greater cutting hole 201 to be simultaneously cut and crushed in both directions.

In addition, the present invention is not limited only by the above-described embodiment, and since it is possible to create the same effect even when changing the detailed configuration or number and arrangement of the device, those of ordinary skill in the art will present the present invention It is specified that various additions, deletions, and modifications are possible within the scope of the technical idea of

100: tube housing 110: connecting flange
120: connection hook 200A: cylindrical grinding mesh
200B: cone-shaped grinding mesh 201: Greater cutting hole
202: fitting piece 203: fitting pin
300: blade assembly 310: rotation shaft
320: blade 400: gearbox
500: adapter 600: motor

Claims (11)

an approximately cylindrical tube housing with open upper and lower ends;
A fixing member is further provided inside the tube housing so that the cylindrical or cone-shaped crushing net body can be replaced and fixedly inserted, so that it can be selectively attached and detached in the tube housing, and has a cylindrical or cone shape as a whole, and has an open top. a pulverizing net body formed with a hollow at the bottom and a plurality of perforations having a uniform pattern on the side so that pulverized powder can be discharged;
A plurality of blades that are rotatably coupled through the hollow at the bottom of the grinding net and arranged in a multi-layer structure at regular intervals on a single vertical axis of rotation simultaneously rotate around the axis of rotation to make the powder injected into the grinding net smaller. a blade assembly for pushing and transferring the cut powder toward the perforation of the pulverizing mesh body while cutting to size; and
A motor provided below the crushing mesh to rotate the rotation shaft of the blade assembly in a forward or reverse direction as it is coupled to the rotation shaft of the blade assembly through one side of the tube housing;
The perforation of the crushing mesh is formed in a curved shape in which the grator cutting hole protruding inward is spirally or downwardly curved along the circumference of the crushing mesh, and as the blade assembly is rotated, the powder injected into the crushing mesh is applied to the blade assembly. It is simultaneously cut and crushed by each blade and the greater cutting hole,
The greater cutting hole of the crushing mesh is formed by punching the greater cutting hole closely along a straight line in a rectangular or sector-shaped metal flat plate having a certain area, and then the greater cutting hole when the metal flat plate is rolled into a cylindrical or cone shape. It is arranged in a spiral or downward curved curved shape along the circumference of this crushing mesh,
When the object to be crushed is dry granular powder without viscosity, a cylindrical crushing mesh is mounted in the tube housing, and the cylindrical crushing mesh is formed in a cylindrical shape having the same inner diameter at the top and bottom, and a grator cutting hole is formed in the cylindrical shape. It has a spirally wound shape along the circumference of the crushing mesh, and the rotation radius from the rotation axis of each blade provided in multiple layers in the crushing mesh to the free end has the same structure, so that the cylindrical crushing mesh has a large volume and depth Even if the raw material powder of dry granules, which does not contain moisture and is not viscous and easily scattered because it has a , is continuously added, the crushed object is accommodated so as not to scatter or overflow from the cylindrical crushing mesh, and the inserted crushing object is the depth of the cylindrical crushing mesh. Simultaneously cutting and pulverizing in and out by each blade rotated while being fed in the direction and a greater cutting hole facing it,
On the other hand, when the object to be pulverized is a viscous wet granular powder, a cone-shaped pulverizing mesh is mounted in the tube housing, and the cone-shaped pulverizing mesh is formed in a cone shape with the largest inner diameter at the top and smaller inner diameters toward the bottom. and the Greater cutting hole has a curved shape curved downward along the circumference of the cone-shaped grinding net, and the radius of rotation from the rotation axis of each blade provided in multiple layers in the grinding net to the free end of the grinding net is As the blade located at the top is the largest at the same ratio as the inner diameter and has a structure that gets smaller towards the bottom, the blade rotates to cut and pulverize the wet granular powder through the cone-shaped grinding mesh and the small rotation radius of the blade. It is possible to reduce the mechanical load, and also because the cone-shaped crushing mesh and the blade have a short discharge path, the powder of the crushed wet granules can be discharged quickly from side to bottom.
powder grinding device. delete delete delete delete The method of claim 1,
An adapter and a gearbox are further provided between the rotation shaft of the blade assembly and the drive shaft of the motor, so that the rotation of the drive shaft of the motor horizontally coupled to one side of the blade assembly by the adapter and the gear box is transmitted to the rotation shaft of the blade assembly in the vertical direction. doing,
powder grinding device. delete The method of claim 1,
The fixing member, at least one fitting piece formed on one side of the outer circumferential surface of the crushing mesh body in a state in which a through hole is formed therein; and
A fitting pin protruding inside the tube housing and selectively fixing the crushing net body in the tube housing as the through hole of the fitting piece is fitted;
powder grinding device. delete delete The method of claim 1,
Each of the blades rotates in a direction meshing with the punching direction of the Greater cutting hole of the crushing mesh body, and the crushing object positioned between the blade and the Greater cutting hole is engaged with the blade and the Greater cutting hole at the same time cut and crushed,
powder grinding device.

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